198429950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 411000480

約数和(自身を除く): 212570530

約数列:

[1, 2, 5, 10, 17, 25, 34, 43, 50, 61, 85, 86, 89, 122, 170, 178, 215, 305, 425, 430, 445, 610, 731, 850, 890, 1037, 1075, 1462, 1513, 1525, 2074, 2150, 2225, 2623, 3026, 3050, 3655, 3827, 4450, 5185, 5246, 5429, 7310, 7565, 7654, 10370, 10858, 13115, 15130, 18275, 19135, 25925, 26230, 27145, 36550, 37825, 38270, 44591, 51850, 54290, 65059, 65575, 75650, 89182, 92293, 95675, 130118, 131150, 135725, 184586, 191350, 222955, 233447, 271450, 325295, 445910, 461465, 466894, 650590, 922930, 1114775, 1167235, 1626475, 2229550, 2307325, 2334470, 3252950, 3968599, 4614650, 5836175, 7937198, 11672350, 19842995, 39685990, 99214975, 198429950]

約数ペア:

[(1, 198429950), (2, 99214975), (5, 39685990), (10, 19842995), (17, 11672350), (25, 7937198), (34, 5836175), (43, 4614650), (50, 3968599), (61, 3252950), (85, 2334470), (86, 2307325), (89, 2229550), (122, 1626475), (170, 1167235), (178, 1114775), (215, 922930), (305, 650590), (425, 466894), (430, 461465), (445, 445910), (610, 325295), (731, 271450), (850, 233447), (890, 222955), (1037, 191350), (1075, 184586), (1462, 135725), (1513, 131150), (1525, 130118), (2074, 95675), (2150, 92293), (2225, 89182), (2623, 75650), (3026, 65575), (3050, 65059), (3655, 54290), (3827, 51850), (4450, 44591), (5185, 38270), (5246, 37825), (5429, 36550), (7310, 27145), (7565, 26230), (7654, 25925), (10370, 19135), (10858, 18275), (13115, 15130)]